Arginine Base. L-Arginine 300 grams. Essential precursor of nitric oxide. Healthy blood vessel support.* Suggested use: As a dietary supplement, take 1 teaspoon daily with a glass of water on an empty stomach. Take consistently each day for best results. Warning: Consult your physicial priority to using this product if you are pregnant, nursing, taking medication, or have a medical condition. Serving Size: 1 teaspoon, 3000mg per 1 teaspoon, % RDA not established.